Monday, 9 December 2013

The Variants Of Phone Systems

Posted by Unknown at 14:40
By Leanne Goff


There are various types of phones and corresponding types of phone systems Chicago. For the sake of information, there are around three primary types that can be further discussed in much greater detail and clarity. One would be the plain old telephone service, another would be the internet protocol phones and lastly, there are the cellular phones.

The plain old telephone service is also commonly known as POTS. It relatively old and it is directly descended from the same system that was developed by Alexander Graham Bell. This is commonly known as the landline, which most residential and commercial structures still make use of. It is also an analog service that has copper wiring.

There are actually several advantages to the use of this variant. Some of the advantages would include having standardized equipment and predictable sound quality. Because of its direct connection to the central office of the company, there exists no need to share its capacity with anyone else who may be in need of it.

All of the switches are already set in place. This creates private circuits for every phone call that is made. Because of that, many refer to it as Public Switched Telephone Network or PSTN. This is something that has been available and used for many decades, even after other variations have risen with all the improvements of technology. Its use has not yet falter in a significant manner.

The second type is utilized heavily by cellular phones. Companies can occasionally have networks that are exclusive to them. Simultaneously, what they have will vary in terms of the type and how far off their technology is. It is comparable to POTS, since it is a full duplex system. That means those on both lines may talk and listen simultaneously.

Despite that similarity, there are notable differences as well. A primary one would be the fact that the cellular variety makes use of radio frequencies as opposed to copper wire. Though these things first started out as mobile voice networks exclusively, they are not capable of carrying both data and voice.

Some of these networks are national. However, there are a few international ones and the best part is that brand new technologies are continuously being developed. 3G supports not just cell phones, but also smartphones, netbook computers and even wireless modem aircards.

Voice over internet protocol or VoIP is also called IP. This is another example of what is used today. This service piggy backs existing connections like DSL or cable services. An analog telephone adapter also serves as the mediator that connects a phone to the modem or the router.

IP systems may be set up with single lines for both telephone and internet services, which can serve as a way to save money. With the use of an integrated T1 line, rather than setting up for data or voice, such a line would be able to handle both. And that is what one can expect from the different phone systems Chicago.




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